Home / 21,913.74-30,244.84-12,966.18

Finding the Fourth Proportional to 21,913.74, 30,244.84 and 12,966.18

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Solution

The fourth proportional to 21,913.74, 30,244.84 and 12,966.18 is: 17,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.74 : 30,244.84 = 12,966.18 : x
  2. Step 2: Convert to fraction form
    21,913.74/30,244.84 = 12,966.18/x
  3. Step 3: Cross multiply
    21,913.74x = 30,244.84 × 12,966.18
  4. Step 4: Simplify right side
    21,913.74x = 392,159,966.61
  5. Step 5: Solve for x
    x = 392,159,966.61/21,913.74
  6. Step 6: Final answer
    x = 17,895.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.